"""
@author: 方杰
@file: 面向对象-三乐购物系统.py
@time: 2023/4/13 15:55
"""

# 购物系统类
# 实例属性 -- 商品信息  系统说明信息  当前用户（多个用户）
# 方法 -- 登录注册  查看商品  添加购物车  结算

# 用户类
# 实例属性 -- 名字  密码  钱  购物车
# 方法 --

#user class
class User:
    def __init__(self, name, passwd, init_amount):
        self.name = name
        self.passwd = passwd
        self.init_amount = init_amount
        self.shopping_car = {}

#shopping_system
class ShoppingSystem:
    def __init__(self, goods_info, sys_info):
        self.goods_info = goods_info
        self.sys_info = sys_info
        self.userdict = {}

    def register(self, name, passwd, initial_amount):
        if name not in self.userdict:
            # 创建一个新用户， 实例化User类
            user = User(name, passwd, initial_amount)
            # 把名字作为key.user对象作为value 存在self.userdict里面
            self.userdict[name] = user
        else:
            print("用户已存在")

    def login(self, name, passwd):
        if name in self.userdict and passwd == self.userdict[name].passwd:
            print("登录成功")
        else:
            print("账号或密码错误")

    def check(self):
        print(f"该购物系统支持购买的商品有:{self.goods_info}")


fruit_goods = {
    'F0001': {"name": "苹果", "price": 8},
    'F0002': {"name": "香蕉", "price": 4}
}

medicine_goods = {
    'M0001': {"name": "奥司他韦", "price": 60},
    'M0002': {"name": "抗病毒口服液", "price": 30}
}

system1 = ShoppingSystem(fruit_goods, "水果购物系统")
system2 = ShoppingSystem(medicine_goods, "药品购物系统")

system = [system1, system2]

while 1:
    print("当前平台, 已有购物系统如下：")
    for k, v in enumerate(system):
        print(f"{k}.{v.sys_info}")
    c1 = input("请输入你的选择(按q退出)：")
    if c1 == "q":
        break
    if c1.isdigit() and int(c1) < len(system):
        c1 = int(c1)
        current_system = system[c1]
        print(f"欢迎进入{current_system.sys_info}".center(40, "*"))
        while 1:
            c2 = input("1.登录\n2.注册\n请输入你的选择(按q退出):")
            if c2 == "q":
                break
            if c2 == "1":
                name, passwd = input("请输入你的名字、密码（用空白分割）:").split()
                current_system.login(name, passwd)
                while 1:
                    c3 = input("1.查看商品\n2.添加购物车\n3.结算\n请输入你的选择(按q退出):")
                    if c3 == "q":
                        break
                    if c3 == "1":
                        current_system.check()
                    if c3 == "2":
                        while 1:
                            good = input("请输入需购买商品的编号:")
                            if good in current_system.goods_info:
                                current_system.shopping_car[good]
########################################


            elif c2 == "2":
                name, passwd, amount = input("请输入你的名字、密码、初始金额（用空白分割）:").split()
                current_system.register(name, passwd, amount)
                print("当前用户有:", end='\t')
                for i, n in enumerate(current_system.userdict):
                    print(n, end='\t')
                    if i == len(current_system.userdict) - 1:
                        print()
            else:
                print("输入有误！")
    else:
        print("输入有误，请重新输入！")

